2-Butyl-7-phenylbenzo[b]benzo[4,5]thieno[2,3-d]thiophene CAS 1781261-91-3

Description

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

2-Butyl-7-phenylbenzo[b]benzo[4,5]thieno[2,3-d]thiophene (CAS 1781261-91-3), molecular formula C24H20S2 and molecular weight 372.55 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C24H20S2, 2-Butyl-7-phenylbenzo[b]benzo[4,5]thieno[2,3-d]thiophene contains sulfur-containing functionality, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 372.55 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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